MIL-STD-849 Inspection Requirements, Definitions And Classification Of Defects For ParachutesThis standard establishes the inspection requirements and a standard classification of manufacturing and final assembly defects for parachutes.

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MIL-STD-849B

TABLE III. Classification of defects - solid and extended skirt parachute canopies - personnel - Continued.

Classification No. Defect Major/Critical Minor

Over 1/4 inch wide regardless of length 153

Over 1/2 inch wide regardless of width 154

30.	Mismatching of cross seams
	First seam from vent over 2 inches and up to 2-1/2 inches		231
	First seam from vent over 2-1/2 inches	155
	All other seams over 2-1/2 inches and up to 3 inches		232
	All other seams over 3 inches	156
	All seams on SF10A greater than ½ inch	157

31.

Vent lines out of sequence

158

32.

Suspension and vent line overlap on canopy

Up to 1/8 inch minus Over 1/8 inch minus Over 1/4 inch plus

159

233

234

33.

Suspension lines not in proper channel or lines crossed

160

34.

Cut, frayed, or damaged suspension, control or vent lines

161

35.

Variation in suspension line length per set, between vent and skirt

Up to 1/2 percent

Over 1/2 percent

162

235

36.

Variation in suspension line length between vent and skirt

Up to 1 percent

Over 1 percent

163

236

37.

Twisted suspension line, between vent and skirt (flat) In channel, up to 360 degrees

In channel, over 360 degrees

164

237

38.

Twisted suspension line between vent and skirt (core or coreless braid)

Over 180 degrees to 360 degrees

238

Over 360 degrees

165